Vehicle Door Handle Cover Detachment via Elastic Locking
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Solution Overview
Problem
The existing inside-door-handle devices for vehicles require a tool for detaching the cover body, which complicates the detaching operation and reduces workability.
Innovation Solution
The inside-door-handle device features a cover body with a locking part and a base part that includes a locked part with an inclined surface, allowing the cover body to be swung and detached without a tool by applying a pushing operation, utilizing a swinging space and elastic deformation to release the locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tool is required for detaching the cover body, then the locking mechanism is secure, but the detaching operability becomes poor
Solution Approach 1:
The locking part is designed to be detachable by the user's own hand without requiring external tools. The inclined surface allows the locking protrusion to be pushed back elastically by manual pressure, enabling the cover body to be removed by simple pushing operations that any user can perform.
Solution Approach 2:
The locking mechanism transitions from a rigid, tool-locked state to a flexible, manually-releasable state through the inclined surface design. The inclination angle and elastic deformation characteristics are optimized to provide sufficient locking force during normal use while allowing easy release with minimal manual force.
2Stability of the object's composition
If the cover body is securely locked to the base part, then the cover remains fixed, but the detaching operation becomes difficult
Solution Approach 1:
The locking mechanism incorporates elastic deformation capability, allowing it to dynamically transition between locked and unlocked states. The locking protrusion can elastically deform to engage with the locked hole securely, then deform back when pressure is applied to the inclined surface, enabling easy detachment.
Solution Approach 2:
The locking mechanism is divided into separate functional elements: a locking protrusion with inclined surface, a locked hole, and an elastic deformation zone. This segmentation allows each component to perform its specific function - providing secure locking during normal use while enabling easy release when needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the detaching operability of the cover body, eliminating the need for a tool and improving ease of use while maintaining the cover's functionality in preventing exposure.
Implementation Method 1
a resilient locking of the locking part 4 and the locked part 5 so that the cover body 3 is held in the mounted position
Data Source
AI summary
An inside-door-handle device for a vehicle is provided with a base part and a cover. A swinging space is provided between the base part and the cover. The cover has a locking section; the base part has a lock-receiving section. A swing motion of the cover relative to the base part is regulated by the elastic locking between the locking section and the lock-receiving section. If the cover swings relative to the base part due to pushing operation toward the cover, the lock between the locking section and the lock-receiving section is released, and the cover can be separated from the base part.